Question

The exercise session should be vigorous enough to increase the heart rate to the target zone and maintain it for

A.) 5 minutes
B.) 5-10 minutes
C.) 10-15 minutes
D.) 60 minutes

Answer 1

5 min or in other words I agree with the top guy because he answers first

Answer 2

A 5 minutes the exercise session should be vigorous enough to increase the hears rate